Anyone who rents AND has an unused 220v line for a laundry room or other application, CAN have dedicated lines. Your other upgrades won't even come close. Look into "power conditioner" step-down transformers from ONEAC or POWERVAR.
Plug one into a 220v line, get two dedicated lines (four outlets) at 120v. With the right models, these are fully capable of providing enough current to fry your ears, speakers and/or amps, if you wanted to see what their limits are, but your laundry circuit and ONEAC or POWERVAR will be just fine.
Nothing comes close to this upgrade, AND (buying one used) will not cost the ridiculous sum you propose for a power cord, where any percieved difference will almost certainly be the result of hopeful delusion that the money was not wasted.
Plug one into a 220v line, get two dedicated lines (four outlets) at 120v. With the right models, these are fully capable of providing enough current to fry your ears, speakers and/or amps, if you wanted to see what their limits are, but your laundry circuit and ONEAC or POWERVAR will be just fine.
Nothing comes close to this upgrade, AND (buying one used) will not cost the ridiculous sum you propose for a power cord, where any percieved difference will almost certainly be the result of hopeful delusion that the money was not wasted.